R Frink Disc My new toy

R

RobertHankins

Joined
Jun 10, 2001
Messages
1,385
I used my Frink made 9" beveled disc today for the first time. :D
Man if you guys want a great flat grind this is the way to go. With a reverseable dc motor it is great for doing flat grinds!

I hogged off most of the material on the platen and finished it on the disc.
It actually came out a true flat grind, no waves Etc.
I like it...
 
Robert, did you get the version that attaches to your belt grinder?? Rob made me one that attaches to my Wilton and I use an old belt to turn it. It's perfect if you have a dc motor on the grinder that gives you variable speed and reversable. Rob does some fine work!!!
 
Michael:

More info on the disc attachment for the Wilton Square Wheel.

Price, setup, changeover, etc.

I did not see it on Rob's site.

Thanks in advance!

Thomas
 
Tom, I don't know what Rob is charging for the disc sander attachment. I designed it and sent him the drawings and he made mine as a prototype to see how it would work. You'll have to email Rob to find out what he's charging for it now. rfrink@qn.net
The way it works is so simple I can't believe someone esle didn't come up with it. It just goes into the hole where the contact wheel goes. You put a sanding belt on it to turn it. One problem I did have with mine is the hub is 3" diameter. The belt just barely grabs the hub, so I made a longer bracket for it. I don't know if Rob is using a larger hub now or not. I might even wrap some tape or something over the hub to make it larger. Anyway, it runs great, real smooth.
Hey, I went to his site and theres a picture of the disc but it doesn't have the shaft and bearings that mine has. It's face is beveled slightly so you can grind a long piece of steel and go past the center of the disc whtout catching the other side. He also slightly rounded the edge on mine. Makes for a very nice choil.
 
Hello Brett,

Actually we are talking about 2 different disks here. Robert Hankins and Bill have a 9" beveled face disk that slips over the end of a shaft with a keyway and set screw. You drive the shaft to spin the disk. I can make them for just about any practical size shaft ..say from 5/8" to 1 1/4". The OD of the disk actually measures about 8 7/8" so that a 9" PSA abrasive pad will hang over the edge just a touch to ensure full coverage.

Michael (L6steel) has something a bit different. His idea was to make a disk mounted on bearings with a stub shaft so that the disk was free spinning on the shaft. Just like the contact wheels on a square wheel. Then he could take the contact wheel off of his square wheel and put on the disk. The disk is then driven by an abrasive belt that runs round the hub on the back of the disk. Clever eh!

I built 2 of them,...one for Michael, and a spare for me....I've never tried mine out so I can't really speak for the performance. The idea and design credit goes to Michael...I'm just the workin' smuck that built it.
;)

Sincerely,
Rob Frink
 
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